.header {
    background: #FFFFFF;
    border-bottom: 1px solid #F3F5F6;
    width: 100%;
    height: 72px;
    box-shadow: 0 4px 8px 0 rgb(7 17 27 / 10%);
    position: fixed;
    z-index: 99999;
    top: 0;
    left: 0;
}

.page-container {
    width: 1152px;
    height: 63px;
    margin: 0 auto;
    font-size: 14px;
    text-align: center;
    line-height: 63px;
}

.nav-item li {
    float: left;
    position: relative;


}

.nav-item li>a {
    display: block;
    font-size: 16px;
    height: 63px;
    line-height: 63px;
    color: #545C63;
    padding: 0 12px !important;
}

.nav-item li .icn-new {
    position: absolute;
    display: inline-block;
    top: 16px;
    right: -3px;
    width: 14px;
    height: 10px;
    background: url(https://www.imooc.com/static/img/common/new2.png) no-repeat 0 0;
    background-size: 100%;
    background-position: center;
}

.header-right {
    float: right;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    height: 63px;
}

.search-box {
    float: left;
    position: relative;
    margin-right: 24px;
    font-size: 16px;
    line-height: 40px;
}

.search-box a i {
    font-size: 20px;

}

.input-search {
    width: 240px;
    box-sizing: border-box;
    background: #F3F5F6;
    border-radius: 4px;
}

.input-search .nav-search-input {
    display: inline-block;
    width: 200px;
    height: 32px;
    line-height: 32px;
    box-sizing: border-box;
    padding-left: 12px;
    background: transparent;
    font-size: 14px;
    color: #545C63;
    outline: none;
    border: 0;
}

.nav-search-box {
    width: 240px;
    /* height: 0; */
    position: absolute;
    top: 52px;
    left: 0;
    background: #fff;
    z-index: 10;
    box-shadow: 0 8px 16px 0 rgb(7 17 27 / 20%);
    transition: height .1s;
}

.hot {
    padding: 12px 0 8px 12px;
    box-sizing: border-box;
}

.hot h2 {
    font-size: 12px;
    color: #1C1F21;
    line-height: 12px;
    margin-bottom: 8px;
    font-weight: bold;
    float: left;
}

.hot-box {
    margin-top: 25px;
    width: 228px;
    height: 120px;
}

.hot-box a {
    background: rgba(84, 92, 99, 0.1);
    border-radius: 12px;
    padding: 4px 12px;
    line-height: 16px;
    margin-right: 4px;
    margin-bottom: 15px !important;
    display: inline-block;
    cursor: pointer;
    font-size: 12px;
    color: #545C63;
    float: left;
}

.hide {
    display: none;
}

.header-favorites {
    float: left;
    position: relative;
    margin-right: 24px;
    font-size: 16px;
    line-height: 40px;
}

.favorites-tips {
    position: absolute;
    bottom: -52px;
    left: 50%;
    width: 212px;
    padding: 12px 20px;
    margin-left: -121px;
    color: #545C63;
    background-color: #fff;
    box-shadow: 0 8px 16px 0 rgb(7 17 27 / 20%);
    border-bottom-left-radius: 8px;
    border-bottom-right-radius: 8px;
    transition: all .2s;
    z-index: 2;
    font-size: 12px;
    line-height: 1;
    text-align: center;
    display: none;
}

.favorites-tips b {
    font-size: 16px;
    color: #F01414;
}

.favorites-tips i {
    font-size: 12px;
}

.gouwuche i {
    font-size: 20px;
}

.gouwuche {
    float: left;
    position: relative;
    margin-right: 24px;
    font-size: 16px;
    line-height: 40px;
}

.login-area {
    float: left;
    position: relative;
}

.login-area .logined {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
}

i {
    cursor: pointer;
}

.i:hover {
    color: #F01414;
}

.login-area .logined .li-item {
    width: auto;
    margin: 0 25px 0 0;
    position: relative;
}
.login-area .logined .li-item:last-child{
    margin: 0 !important;
}
.login-area .logined .li-item>a {
    color: #545C63;
    font-size: 16px;
    line-height: 63px;
    text-align: center;
    display: block;
}

#header-avator img {
    display: inline-block;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    vertical-align: middle;
    border: 2px solid #F3F5F6;
}

#header-avator img:hover {
    border: 2px solid #F01414;
}
.red{
    border: 2px solid #F01414 !important;
}
.g-user-card {
    overflow: hidden;
    position: absolute;
    right: 0;
    top: 100%;
    z-index: 1000;
    width: 306px;
    padding: 24px;
    background-color: #fff;
    box-shadow: 0 8px 16px 0 rgb(7 17 27 / 20%);
    border-bottom-right-radius: 8px;
    border-bottom-left-radius: 8px;
    box-sizing: border-box;
    display: none
}

.card-inner {}

.card-top {
    color: #93999f;
    position: relative;
}

.card-top img {
    float: left;
    width: 72px;
    height: 72px;
    border-radius: 50%;
    border: 2px solid #fff;
    margin-right: 12px;
}

.card-top-right-box {
    margin-top: -10px;
    float: left;
    margin-left: -10px;
}

.text-ellipsis {
    display: inline-block;
    font-size: 16px;
    color: #07111b;
    width: 170px;
    line-height: 20px;
    text-align: left;
    margin-left: 10px;
}

.meta {
    margin-top: -10px;
    font-size: 12px;
    line-height: 12px;
    margin-left: -20px;
}

.meta a {
    margin-right: 12px;
    color: #93999f;
}


.js-user-mp {
    margin-left: 18px;
}

.js-user-credit {
    margin-left: 18px;
}

.user-center-box {
    margin-top: 16px;
    margin-bottom: 14px;
}

.user-center-box ul li {
    float: left;
    position: relative;
    width: 127px;
    height: 36px;
        background: #F8FAFC;
    border-radius: 2px;
    color: #4d555d;
    margin: 0 2px 2px 0;
}

.user-center-box li a {
    position: absolute;
    top: 0px;
    left: -20px;
    width: 100%;
    height: 36px;
    line-height: 36px;
    padding-left: 12px;
    box-sizing: border-box;
    color: #1c1f21;
}
.card-sets{
    margin-top: 16px;
    font-size: 12px;
    line-height: 12px;
    color: #93999F;
    float: left;
}
.sub-header {
    width: 100%;
    height: 54px;
    background: #fff;
    padding: 8px 0;
    margin-top: 72px !important;
}

.sub-header_box {
    max-width: 1088px;
    height: 100%;
    margin: 0 auto;
}

.article-logo img:nth-child(1) {
    height: 54px;
}

.article-logo img:nth-child(2) {
    height: 19px;
    margin-bottom: 10px;
}

.operate-area {
    float: right;
}

.operate-area span {
    background: #37f;
    width: 90px;
    height: 36px;
    line-height: 54px;
    padding: 8px 24px;
    margin: 9px 0;
    color: #fff;
    font-size: 14px;
    border-radius: 4px;
    box-sizing: border-box;
}

.search-area {
    float: right;
    width: 320px;
    height: 36px;
    background: #fff;
    font-size: 14px;
    color: #9199a1;
    padding: 0;
    margin: 0;
    border-radius: inherit;
    line-height: 54px;
    position: relative;
}

.search-area input {
    border: 0;
    outline: 0;
    width: 282px;
    height: 34px;
    padding: 0px 16px;
    font-size: 12px;
    color: #9199a1;
    border-radius: 4px;
    border: 1px solid #9199a1 !important;
}

.showhide-search {
    position: absolute;
    right: 4px;
    top: 11px;
    font-size: 24px;
    color: #fff;
    line-height: 24px;
    padding: 6px 9px;
    border-radius: 0;
    border-top-right-radius: 4px;
    border-bottom-right-radius: 4px;
    background: #545c63;
}

.main {
    height: 100%;
    width: 100%;
    padding-bottom: 36px;
    background-color: #f3f5f6;
}

.main_box {
    height: 100%;
    width: 1088px;
    padding-top: 24px;
    margin: 0 auto;

}

.main_box_ul {
    width: 104px;
    margin-right: 24px;
    text-align: center;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 8px 0 rgb(28 31 33 / 10%);
    float: left;
}

.main_box_ul .item {
    width: 88px;
    line-height: 20px;
    border-radius: 6px;
    margin: 0 auto;
    box-sizing: border-box;
    padding: 8px 0;
    font-size: 14px;
    position: relative;
    margin-bottom: 8px;
    margin-top: 10px;
    cursor: pointer;
}

.main_box_ul .item:hover {
    color: #37f;
}

.main_box_ul .active {
    color: #37f;
    background: rgba(51, 119, 255, .1);
    font-weight: 700;
}
#iframe {
    width: 100% !important;
    height: 100% !important;
}
.main_box_ul .item .label-box-wrap {
    padding-left: 10px;
    box-sizing: border-box;
    width: 285px;
    z-index: 2;
    position: absolute;
    left: 86px;
    top: 0;
    background: 0 0;
    display: none;
}

.main_box_ul .item .label-box {
    display: flex;
    flex-wrap: wrap;
    width: 380px;
    padding: 16px 0 4px 16px;
    box-sizing: border-box;
    background: #fff;
    box-shadow: 0 4px 8px 0 rgb(28 31 33 / 20%);
    border-radius: 8px;
}

.main_box_ul .item .label-box span {
    margin-right: 16px;
    margin-bottom: 12px;
    font-size: 14px;
    color: #545c63;
    font-weight: 400;
}

.centerlist {
    overflow: hidden;
    float: left;
    width: 656px;
    position: relative;
}

body {
    background-color: #f3f5f6;
}

.centerlist .bannerBox {
    width: 100%;
    margin-bottom: 16px;
}

.leftImg {
    width: 456px;
    height: 200px;
    position: relative;
    border-radius: 12px 0 0 12px;
    overflow: hidden;
}

.leftImg img {
    width: 100%;
    height: 100%;
}

.leftImg .bannerDescription {
    width: 100%;
    height: 60px;
    box-sizing: border-box;
    padding: 24px 16px 12px 16px;
    background-image: linear-gradient(-180deg, rgba(28, 31, 33, 0) 0, #1c1f21 100%);
    font-weight: 700;
    font-size: 16px;
    color: #fff;
    line-height: 24px;
    position: absolute;
    bottom: 0;
    left: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.l {
    float: left;
}

.r {
    float: right;
}

.rightImg {
    width: 196px;
    height: 200px;
    position: relative;
    border-radius: 12px 0 0 12px;
    overflow: hidden;
}

.topImg {
    width: 196px;
    height: 98px;
    margin-bottom: 8px;
}

.topImg img {
    width: 100%;
    height: 100%;
    border-radius: 0 12px 0 0;
}


.bannerDescription2 span {
    width: 100%;
    height: 48px;
    box-sizing: border-box;
    padding: 8px 12px;
    background-image: linear-gradient(-180deg, rgba(0, 0, 0, 0) 0, #000 100%);
    font-weight: 700;
    font-size: 12px;
    color: #fff;
    line-height: 16px;
    position: absolute;
    bottom: 98px;
    left: 0;
}

.bannerDescription3 span {
    width: 100%;
    height: 48px;
    box-sizing: border-box;
    padding: 8px 12px;
    background-image: linear-gradient(-180deg, rgba(0, 0, 0, 0) 0, #000 100%);
    font-weight: 700;
    font-size: 12px;
    color: #fff;
    line-height: 16px;
    position: absolute;
    bottom: 0px;
    left: 0;
}

.buttomImg {
    width: 196px;
    height: 98px;

}

/* 
.article-box{
    background: #fff;
    overflow: hidden;
    border-radius: 12px;
    box-shadow: 0 4px 8px 0 rgb(28 31 33 / 10%);
} */
.article-wrapper {
    position: relative;
    margin-top: 10px;
    width: 660px;
}
.article-lwrap {
    width: 100%;
    height: 80px;
    padding: 0 4px;
    box-sizing: border-box;
    margin-bottom: 0;
    /* background: #fff; */
}

.article-lwrap .imgCon {
    height: 80px;
}

.article-lwrap .imgCon img {
    width: 66px;
    height: 66px;
    border-radius: 8px;
    margin: 8px 16px 6px 16px;
}

.article-lwrap .list-content {
    width: 534px;
    height: 69px;
    padding-top: 10px;
    border-bottom: 1px solid rgba(28, 31, 33, .1);
    position: relative;
}
.article-lwrap .title p {
    font-weight: 700;
    margin-bottom: 4px;
    font-size: 16px;
    color: #1c1f21;
    line-height: 30px;
    word-break: keep-al
}

.collect {
    position: absolute;
    top: 14px;
    right: 0;
    font-size: 14px;
    color: #37f;
    text-align: right;
    line-height: 24px;
    font-weight: 700;
    display: none;
}

.list-bottom {
    max-width: 525px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.moco-label {
    margin-right: 16px;
    padding: 4px 12px;
    font-size: 12px;
    color: #545c63;
    line-height: 16px;
    background: rgba(84, 92, 99, 0.1);
    border-radius: 12px;
    cursor: pointer;
}

.browseNum {
    display: flex;
}

.browseNum .icn {
    margin-right: 6px;
    font-size: 12px;
    color: #9199a1;
    line-height: 18px;
    padding-top: 3px;
}

.browseNum .views {
    margin-right: 16px;
    font-size: 12px;
    color: #9199a1;
    line-height: 18px;
    padding-top: 3px;
}

.browseNum .author {
    margin-right: 16px;
    font-size: 12px;
    color: #9199a1;
    line-height: 18px;
    cursor: pointer;
    padding-top: 3px;
    position: relative;
}

.autograph-top {
    position: absolute;
    top: -295px;
    left: 100px;
}

.autograph-left {
    position: absolute;
    top: -115px;
    left: 318px;
}

.autograph-bottom {
    position: absolute;
    top: 83px;
    left: 100px;
}

.autograph {
    z-index: 999999999999;
    position: absolute;
    width: 340px;
    height: 308px;
    border-radius: 4px !important;
    z-index: 1000 !important;
    background-color: #fff;
    box-shadow: 0 12px 24px 0 rgb(0 0 0 / 24%);
    display: none;
}

.personList .autograph-top {
    position: absolute;
    top: -323px;
    left: -51px;
}

.personList .autograph-right {
    position: absolute;
    top: 55px;
    left: 0px;
}
.personList .autograph-left{
    position: absolute;
    top: -323px;
    left: -51px;
}

.moco-headialog {
    background: url(https://www.imooc.com/static/img/u/teacher_dialogbk.png) no-repeat 0 0;
    border-radius: 4px;
    text-align: center;
    width: 340px;
    height: 136px;
}


.moco-headialog a {
    margin-top: 9px;
    color: #fff;
}

.moco-usercard-head img {
    border-radius: 20px;
    margin-top: 20px;
}

.moco-usercard-signicon {
    display: inline-block;
    margin-left: 2px;
    top: 4px;
    height: 21px;
    width: 20px;
    background-image: url(https://www.imooc.com/static/img/u/user-info-icon-little.png);
    background-repeat: no-repeat;
    position: relative;
}

.moco-usercard-teacher {
    background-position: 0 -18px;
}

.moco-usercard-author {
    background-position: 0 -40px;
}

.moco-usercard-job-title {
    font-size: 12px !important;
    margin-top: 10px;
    color: #fff;
}

.moco-usercard-job-title .moco-usercard-secret {
    margin-right: 10px;
    display: inline-block;
    width: 16px;
    height: 16px;
    background-image: url(https://www.imooc.com/static/img/u/secret.png);
}

.moco-usercard-signature {
    font-size: 12px !important;
    color: #93999f !important;
    margin-top: 25px;
    margin-bottom: 15px;
    min-height: 36px;
    max-height: 36px;
    width: 307px;
    margin-left: 17px;
    display: block;
    white-space:nowrap;
    overflow:hidden;
    text-overflow:ellipsis;
}

.moco-usercard-detail-left {
    width: 40%;
    height: 20px;
    float: left;
    border-right: 1px solid #ccc;
    text-align: right;
    padding-right: 10%;
    color: #4d555d !important;
}

.moco-usercard-detail-right {
    width: 39%;
    height: 20px;
    float: right;
    text-align: left;
    padding-left: 10%;
    color: #4d555d !important;
}

.bold {
    font-weight: 700 !important;
}

.moco-usercard-mc-btn {
    margin-top: 20px !important;
    color: #fff;
    background-color: #5cb85c;
    border-color: #4cae4c;
    display: inline-block;
    padding: 0 30px;
    margin-bottom: 0;
    font-size: 14px;
    font-weight: 400;
    text-align: center;
    border-radius: 2px;
    line-height: 40px;
}

.icon-group_add {
    color: #fff;
}

.browseNum .skill a,
i {
    font-size: 12px;
    color: #9199a1;
    line-height: 18px;
    padding-top: 3px;
}

.createTime {
    font-size: 12px;
    color: #9199a1;
    line-height: 18px;
    padding-top: 3px;
}

.right_personalization {
    margin-left: 24px;
    width: 280px;
}

.right_personalization .carefully_selected {
    height: 120px;
    width: 280px;
}

.carefully_selected .sevenImg {
    background: url(http://static3.sycdn.imooc.com/static/img/article/right_personalization/seven.png) no-repeat top left;
    width: 100%;
    height: 56px;
    background-size: cover;
    margin-bottom: 8px;
    border-radius: 10px;
}

.carefully_selected .thirtyImg {
    background: url(http://static3.sycdn.imooc.com/static/img/article/right_personalization/thirty.png) no-repeat top left;
    width: 100%;
    height: 56px;
    background-size: cover;
    border-radius: 10px;
}

.find {
    height: 260px;
}

.fixed {
    position: fixed;
}

.column_recommend.fixed {
    width: 280px;
    height: 280px;
    top: 63px;
    right: 80px;
    bottom: 0px;
    background: #f8fafc;
    margin-top: 20px;
}

.column_recommend {
    width: 100%;
    margin-top: 24px;
}

.column_recommend .title {
    font-weight: 700;
    font-size: 16px;
    line-height: 24px;
    margin-bottom: 16px;
    color: #1c1f21;
    position: relative;
}

.column_recommend .title .more {
    position: absolute;
    right: 0px;
    top: 0;
    font-size: 12px;
    color: #9199a1;
    line-height: 24px;
    cursor: pointer;
}

.right_personalization ul li {
    width: 100%;
    margin-bottom: 8px;
}

.right_personalization ul li .img {
    background-image: url(http://img4.sycdn.imooc.com/5fc9da670001a27f05400720.jpg);
    background-repeat: no-repeat;
    width: 70px;
    height: 98px;
    background-size: cover;
    background-position: center;
    border-radius: 10px;
    position: relative;
    margin-right: 12px;
}


.right_personalization ul li .text_con {
    width: 198px;
    padding-top: 4px;
    height: 106px;
    box-sizing: border-box;
    border-bottom: 1px solid rgba(28, 31, 33, .1);
}

.right_personalization ul li .text_con .text_con_p {
    font-weight: 700;
    font-size: 14px;
    color: #545c63;
    line-height: 20px;
    text-align: left;
    margin-bottom: 4px;
    max-height: 40px;
    overflow: hidden;
}

.right_personalization ul li .text_con .info span,
i {
    font-size: 12px;
    color: #9199a1;
    text-align: left;
    line-height: 18px;
}

.price_con .ori {
    font-size: 12px;
    color: #9199a1;
    line-height: 24px;
}

.price_con .goBuy {
    padding: 0 12px;
    height: 24px;
    font-weight: 700;
    font-size: 12px;
    color: #37f;
    line-height: 24px;
    background: rgba(51, 119, 255, .1);
    border-radius: 12px;
    margin-right: 16px;
}

.hot_article {
    width: 100%;
    margin-top: 24px;
    position: relative;
}

.hot_article .tou h3 {
    font-weight: 700;
    font-size: 16px;
    line-height: 24px;
    margin-bottom: 16px;
    color: #1c1f21;
}

.hot_article .more a {
    position: absolute;
    right: -20px;
    top: 0;
    font-size: 12px;
    color: #9199a1;
    line-height: 24px;
    cursor: pointer;
}

.articleList .item {
    margin-bottom: 12px;
    position: relative;
    width: 280px;
    height: 48px;
}

.articleList .item .imgCon {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    background-size: cover;
    display: inline-block;
}

.imgCon img {
    width: 48px;
    height: 48px;
    border-radius: 8px;
}

.imgCon .status {
    position: absolute;
    width: 32px;
    height: 16px;
    left: 24px;
    top: 0;
}

.articleList .item .text {
    width: 220px;
    font-size: 14px;
    color: #1c1f21;
    line-height: 20px;
}

.recommended_author {
    margin: 24px auto 0;
    /* overflow: hidden; */
}

.recommended_author .tou2 h3 {
    font-weight: 700;
    font-size: 16px;
    line-height: 24px;
    margin-bottom: 16px;
    color: #1c1f21;
}

.personList {
    margin-top: 16px;
}

.personList .person {
    width: 100%;
    height: 48px;
    margin-bottom: 16px;
    position: relative;
}

.personList .person img {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    overflow: hidden;
}

.personList .person .text {
    margin-top: 3px;
    margin-left: 16px;
    text-align: left;
}

.personList .person .text .name {
    max-width: 150px;
    font-weight: 700;
    font-size: 14px;
    color: #383d42;
    line-height: 22px;
    margin-bottom: 2px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.personList .person .text .text_p {
    font-size: 12px;
    color: #9199a1;
    line-height: 18px;
}

.personList .person .text .text_p span:last-child {
    margin-left: 24px;
}

.personList .person .follow {
    position: absolute;
    top: 0px;
    right: 0px;
    outline: 0;
    border: 0;
    height: 24px;
    line-height: 24px;
    width: 60px;
    padding: 0 16px;
    font-size: 12px;
    cursor: pointer;
    border-radius: 10px;
}

.personList .person .follow span {
    position: relative;
}

.personList .person .follow i {
    font-size: 12px;
    position: absolute;
    top: -5px;
    left: -12px;
    color: #545c63;
}
.big_article{
    padding-top: 8px;
    background: #fff;
    border-radius: 12px !important;
}

.article-wrapper:last-child .article-lwrap .list-content{
    border-bottom: 0px;
}

.show{
    display: inline-block;
}

.hide-list{
    display: none;
}

#J_GotoTop {
    position: fixed;
    padding: 0 16px;
    top: 50%;
    margin-top: -140px;
    right: 0;
    z-index: 899;
    background: #FFFFFF;
    box-shadow: 0 4px 8px 0 rgb(7 17 27 / 10%);
    border-radius: 8px 0 0 8px;
}

#J_GotoTop a {
    position: relative;
    display: block;
    width: 26px;
    height: 56px;
    font-size: 22px;
    line-height: 20px;
    color: #b5b9bc;
    box-sizing: border-box;
    text-align: center;
}

#J_GotoTop a i {
    font-size: 24px;
    line-height: 50px;
    color: #D9DDE1;
    display: inline-block;
    width: 24px;
    border-bottom: 1px solid #F3F5F7;
}

#J_GotoTop a:last-child i {
    border-bottom: 0 !important;
}

#J_GotoTop a span {
    display: none;
    padding: 14px 0;
    font-size: 12px;
    color: #14191e;
    line-height: 14px;
}

#J_GotoTop .elevator-app-box {
    background: url(https://static3.sycdn.imooc.com/static/img/common/elevator.png?t=0705)no-repeat 0 -220px;
    background-repeat: no-repeat;
    background-size: 100%;
    position: absolute;
    width: 172px;
    height: 212px;
    bottom: -10px;
    right: 52px;
    display: none;
}

#J_GotoTop .elevator-weixin-box {
    background: url(https://static3.sycdn.imooc.com/static/img/common/elevator.png?t=0705)no-repeat 0 0;
    background-repeat: no-repeat;
    background-size: 100%;
    position: absolute;
    width: 172px;
    height: 212px;
    bottom: -10px;
    right: 52px;
    display: none;
}

.keu {
    height: 126px;
    background-color: #fff;
    border-top: 1px solid #f3f5f6;
}

.keu_container {
    width: 1191px;
    margin: 0 auto;
    padding: 32px 0;
    position: relative;
}

.footer_sns {
    position: absolute;
    right: 0;
    bottom: 24px;
}

.keu_container .i {
    width: 50px;
    height: 59px;
    margin-right: 24px;
    float: left;
}

.keu_container .i a {
    display: inline-block;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    overflow: hidden;
    background: #B7BBBF;
    text-align: center;
    line-height: 32px;
}

.keu_container .i a i {
    font-size: 20px;
    color: #ffffff;
}

.keu_container .i p {
    font-size: 12px;
    color: #545C63;
    margin-top: 10px;
    margin-left: -10px;
}

.footer_sns_favorites_tips {
    display: none;
    position: absolute;
    bottom: 74px;
    width: 240px;
    padding: 12px 20px;
    margin-left: -140px;
    color: #545C63;
    background-color: #fff;
    box-shadow: 0 -8px 16px 0 rgb(7 17 27 / 20%);
    border-top-left-radius: 8px;
    border-top-right-radius: 8px;
    transition: all .2s;
    font-size: 12px;
    line-height: 1;
}

.footer_sns_favorites_tips b {
    font-size: 16px;
    color: #F01414;
}

.keu_container .i a:hover {
    background: #545C63;
}

.footer_sns_weixin_expand {
    background-image: url(https://www.imooc.com/static/img/common/elevator2.png);
    position: absolute;
    display: none;
    width: 160px;
    height: 200px;
    left: 8px;
    bottom: 80px;
    background-size: 100%;
    background-position: center;
    box-shadow: 0 -8px 16px 0 rgb(7 17 27 / 20%);
    border-radius: 8px;
}

.tao {
    background: #545C63 !important;
}

.tao:hover {
    background: #F01414 !important;
}

.footer_link {
    text-align: left;
    border: none;
    padding: 0;
}

.footer_link a {
    display: inline-block;
    font-size: 14px;
    line-height: 28px;
    color: #545C63;
    margin-right: 24px;
    font-weight: 300;
}

.footer_copyright {
    font-size: 12px;
    text-align: left;
    margin-top: 8px;
    color: #93999F;
    line-height: 24px;
    font-weight: 300;
}

.footer_copyright .moco_emoji {
    width: 18px;
    height: 18px;
    display: inline !important;
    margin: 0 !important;
}

.footer_copyright .beian {
    background: url(https://www.imooc.com/static/img/beianicon.png)no-repeat 0 0;
    width: 16px;
    height: 16px;
    vertical-align: middle;
    background-size: cover;
    display: inline-block;
    margin-right: 4px;
    margin-top: -4px;
}